"With regards to train windows - these have been the target of vandals for decades, initially for their aluminium frames, then later entire windows would disappear only to surface in informal dwellings," Scott said.

A cat makes its home in a gutted Metrorail carriage. Picture: David Ritchie/ANA Pictures

“It was suspected at the time that the thieves would sell the windows onto unsuspecting homebuilders.

"We encourage communities and commuters to be part of the fight against crime by reporting suspicious behaviour. A reward of up to R25 000 is payable for any information leading to a conviction,” he said.